diff --git a/HACKING.md b/HACKING.md
index 14b18bd1..e4cf2a3f 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -40,7 +40,7 @@ Most common testing is done in CI. Occasionally, and for each release, do perfor
 Testing with an application:
 
 ```
-python3 tests/entry.py
+python3 tools/entry.py
 ```
 
 Testing visibility:
diff --git a/tests/entry.py b/tools/entry.py
old mode 100644
new mode 100755
similarity index 100%
rename from tests/entry.py
rename to tools/entry.py